But it was one little girl in particular who offered up some very sound advice to the Prince, which was captured by the Instagram account @harry_meghan_updates.

"When Archie is asleep, don't put loud films on," she wrote in a card. "Good luck with the baby."

That’s one very wise little lady.

Of course, if Harry or Meghan need any tips on raising a royal baby they can just call up Prince William and Kate Middleton.

No doubt, the royal couple are smitten with their new nephew, especially after it was revealed they met him for the first time on Tuesday.

A palace rep confirmed to People that the Duke and Duchess of Cambridge visited Harry, Meghan, and little Archie at their home in Frogmore Cottage, eight days after the arrival of the newest royal family member.

Last week, an official photo documented when Archie met his great-grandparents Queen Elizabeth and Prince Phillip and his maternal grandmother Doria Ragland.